My Childhood Friend Is the Emperor's Sister-in-Law

Prince Qi Zhao Mingcong and Bao Zhu were childhood sweethearts, growing up together from the time they were little. His lifelong wish was to defend the land of Xia and protect Bao Zhu. After the late emperor died, he left an imperial decree ordering Prince Chen to take the throne. But after Prince Chen ascended the throne, he married Wei Baozhu and made her empress. At the time, Prince Qi was away at war. When he returned, the woman he loved had become his imperial sister-in-law. The only way for Prince Qi to take back the woman he loved was to rebel. Later, after his rebellion succeeded, he suddenly realized that the throne had been his all along.